How Much Coffee to Plan Per Guest at an Event

Most hosts guess, and most hosts guess low.

Here is how to calculate it properly, based on what actually drives consumption at an event.

Start with the baseline

Plan 1.5 to 2 drinks per guest for a service window of two hours or more.

That number surprises people. It should not. Guests do not drink one coffee and stop. They get one when they arrive, then another when they walk past the cart an hour later because it is there and it is free.

For a service window under one hour, plan 1 to 1.25 drinks per guest. There simply is not time for more.

Then adjust for these five things

Time of day. Morning events run high, closer to 2 per guest. Late evening runs lower unless guests are staying late, in which case it spikes again.

Temperature. This is Florida. Cold coffee consumption climbs on hot days. Consumption of hot coffee at an outdoor July event collapses. The National Coffee Association's own data has tracked cold coffee gaining ground on hot, with a fall 2025 report tying higher summer temperatures to shifts toward chilled drinks.

What else is being served. A full bar pulls guests away from coffee. An alcohol free event pushes consumption up sharply, sometimes past 2.5 per guest, because the cart becomes the only place to get a drink that feels like a drink.

Event type. Conferences run highest. Attendees drink coffee to survive the afternoon. Weddings run lower during dinner and spike hard after.

Whether it is a spectacle. A tap cart draws more traffic than a table of urns. Guests come over to watch the pour. Plan higher for a nitro setup than you would for a coffee station.

Worked examples

100 guest wedding reception, four hour service
100 guests x 1.75 = 175 drinks. Bump to 200 if the bar closes early or the event is alcohol free.

50 person corporate breakfast, 90 minutes
50 x 1.5 = 75 drinks. Morning timing keeps this on the higher end.

300 person conference, six hour floor
300 x 2 = 600 drinks, but the real question is throughput, not volume. See the next section.

40 person private event, three hours
40 x 1.75 = 70 drinks.

Volume is not your real constraint

Running out of coffee is rare. Running out of time is common.

One cart pours [X] drinks per hour. If 200 guests arrive at once and you have one cart, the math is unforgiving no matter how much coffee sits in the keg.

The fix is either a second cart or a staggered service window. For most events over [X] guests, we recommend a second cart rather than a longer line.

This is the calculation planners get wrong most often, and it is the one we run first when someone sends us a guest count. More detail on the mechanics is in coffee cart vs coffee station.

A note on waste

Over ordering coffee at a traditional station means brewed pots poured down a drain.

A keg does not have that problem. Unpoured coffee stays sealed and cold. Planning slightly high costs almost nothing, which is why we would rather you round up.

Quick reference

The short answer

Take your guest count. Multiply by 1.75. Round up.

Then check whether one cart can physically pour that many in your service window. That second number is the one that decides your setup.

Send us your guest count and service window. We will tell you exactly what you need. Get a quote.